Raman study of orbital mediated multiphonons in RMnO3 (R = Pr,Sm,Eu,Tb,Y) J. Laverdière, S. Jandl, A. A. Mukhin and V. Yu. Ivanov Eur. Phys. J. B, 54 1 (2006) 67-72 Published online: 29 November 2006 DOI: 10.1140/epjb/e2006-00419-y